Home / 117,309.52-175,966-81,250.42

Finding the Fourth Proportional to 117,309.52, 175,966 and 81,250.42

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Solution

The fourth proportional to 117,309.52, 175,966 and 81,250.42 is: 121,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,309.52 : 175,966 = 81,250.42 : x
  2. Step 2: Convert to fraction form
    117,309.52/175,966 = 81,250.42/x
  3. Step 3: Cross multiply
    117,309.52x = 175,966 × 81,250.42
  4. Step 4: Simplify right side
    117,309.52x = 14,297,311,405.72
  5. Step 5: Solve for x
    x = 14,297,311,405.72/117,309.52
  6. Step 6: Final answer
    x = 121,876.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.